Navigation mode, function - GF82.85-P-2012SXJ

MODEL 216.3, 221.0 /1 with CODE (498) Japan version up to Model Year 8 

Fig 1: CAN Communication Diagram Of Navigation Mode (Shown On Model 221)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06 with code (810) Sound system 

As of 1.9.06, the location and number of microphones in the hands-free system microphone group will change as follows:

• The number of microphones will be reduced from 4 to 2.
• The installation location of the microphones will change from underneath to above the inside rearview mirror unit (A67).

Navigation 

The navigation system consists of the following components:

• Navigation processor (integrated in the COMMAND controller unit)
• VICS control unit (A2/37) for dynamic destination-oriented navigation
• Electronic toll collection (ETC) control unit (A50/3) and electronic toll collection (ETC) antenna (A2/94)
• Telephone and GPS roof antenna (model 221) or telephone and GPS antenna (A2/49) (model 216)

The following navigation components of the navigation processor are integrated into the COMMAND controller unit:

• Global positioning system (GPS) receiver
• Hard disk for map and voice data
• Yaw rate sensor

The navigation data are compiled in the navigation processor where they are processed. The data basis is the navigation map, which is stored on the hard disk in the COMMAND controller unit. The data are then internally processed and displayed on the COMMAND display or in the instrument cluster. The audio signals are sent from the COMMAND controller unit over the MOST to the audio tuner control unit and from there to the speaker system.